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- Title
The decline in physical activity among adolescent students: a cross-national comparison.
- Authors
Allison KR; Adlaf EM; Dwyer JJM; Lysy DC; Irving HM; Allison, Kenneth R; Adlaf, Edward M; Dwyer, John J M; Lysy, Daria C; Irving, Hyacinth M
- Abstract
<bold>Background: </bold>The decline in physical activity during adolescence is a key public health concern. This comparative study assesses whether the age-related decline in physical activity among high school students occurs similarly in the United States (U.S.) and Ontario, whether the decline in physical activity is steady throughout the age range, or whether any declines are age-specific.<bold>Methods: </bold>Data are based on self-reports of 9th- to 12th-graders derived from the 2001 Youth Risk Behavior Survey (n=13,503) and the 2001 Ontario Student Drug Use Survey (n=1322). Physical activity is measured by the number of days of vigorous physical activity during the past 7 days.<bold>Results: </bold>In both samples, there was a dominant and steady decline in physical activity between ages 14 and 18 years. The number of activity days was higher in the U.S. than in Ontario holding constant age and sex. However, a significant sample-by-age interaction showed that the decline in the percentage of U.S. students reporting 3 or more physical activity days was greater than it was in Ontario.<bold>Conclusions: </bold>While the pattern of decline was shown to be similar, the decline was stronger among US adolescents. Future research should examine additional factors influencing the decline in activity and the optimal timing of programs to reduce the decline.
- Subjects
CANADA; UNITED States; AGE distribution; HEALTH behavior; MOTOR ability; PUBLIC health; QUESTIONNAIRES; RESEARCH funding; RISK assessment; SEX distribution; STUDENTS; TEENAGERS' conduct of life
- Publication
Canadian Journal of Public Health, 2007, Vol 98, Issue 2, p97
- ISSN
0008-4263
- Publication type
journal article
- DOI
10.1007/bf03404317